Mitsui Chemicals, Inc.

Shunichi Hama

Norio Kashiwa

Tadahito Nobori

Tomoaki Matsugi

Satoru Moriya

Shinichi Kojoh

Ryoji Mori

Seiji Ota

Taku Koda

Hideyuki Kaneko

Junji Tan

Olefin block copolymers (A-1) are disclosed represented by the formula (I) PO-g-B. . . (I) wherein POis a segment comprised of repeating units derived from an olefin having 2 to 20 carbon atoms, gis an ester, ether, amide, imide, urethane, urea, silylether or carbonyl linkage, and Bis a segment containing an unsaturated hydrocarbon or a hetero atom. The olefin block copolymers are suitable for uses in adhesives, various molded articles such as construction and civil engineering materials, automobile interior and exterior materials, gasoline tanks, electric and electronic parts, medical care and sanitation materials, materials of miscellaneous goods, resin materials having environmental degradation properties, films and sheets, modifiers and dispersions.

Olefin block copolymers, processes for producing the same and uses thereof

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Chiba, Japan

Shunichi Hama